In the world of ecommerce, downtime costs your business money. Even if you manage to maintain a total uptime of 99 percent, it means that your site is down for about 7 hours each and every month. Exactly how much money you lose during those 7 hours depends on your site's sales volume and how much money your site averages per hour. Regardless of what the loss comes out to, almost everyone will agree that any loss of profits is too much. To make matters worse, downtime doesn’t just affect your site's profit margin. It also affects your site's reputation and customer retention.